GLIBCXX_3.4.15 not found

When I try to run Blender builds from Graphicall.org (11.04 Natty 64-bit), I get the following message:

./blender: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version 'GLIBCXX_3.4.15' not found (required by ./blender)

I have tried updating GCC and G++, but it still gives the error, and when I run

strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBC

I get

GLIBCXX_3.4 
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBC_2.2.5
GLIBC_2.3
GLIBC_2.4
GLIBC_2.3.4
GLIBC_2.3.2
GLIBCXX_FORCE_NEW
GLIBCXX_DEBUG_MESSAGE_LENGTH

Are there any other libraries needed to get glib 3.4.15 on 11.04, or any other workarounds?

Edit: I don't know if it makes a difference, but I'm on a Wubi install.

ldd ./blender gives

./blender: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version 'GLIBCXX_3.4.15' not found (required by ./blender)
            linux-vdso.so.1 =>  (0x00007fffce5ff000)
            libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f773ec3d000)
            libpython3.2mu.so.1.0 => /usr/lib/libpython3.2mu.so.1.0 (0x00007f773e6cc000)
            libopenal.so.1 => /usr/lib/libopenal.so.1 (0x00007f773e473000)
            libgomp.so.1 => /usr/lib/x86_64-linux-gnu/libgomp.so.1 (0x00007f773e265000)
            libtiff.so.4 => /usr/lib/x86_64-linux-gnu/libtiff.so.4 (0x00007f773e002000)
            libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f773dde9000)
            libsndfile.so.1 => /usr/lib/libsndfile.so.1 (0x00007f773db81000)
            libfftw3.so.3 => /usr/lib/libfftw3.so.3 (0x00007f773d886000)
            libSDL-1.2.so.0 => /usr/lib/libSDL-1.2.so.0 (0x00007f773d5ef000)
            libGL.so.1 => /usr/lib/mesa/libGL.so.1 (0x00007f773d372000)
            libGLU.so.1 => /usr/lib/libGLU.so.1 (0x00007f773d103000)
            libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f773cdc8000)
            libXi.so.6 => /usr/lib/x86_64-linux-gnu/libXi.so.6 (0x00007f773cbb8000)
            libjpeg.so.62 => /usr/lib/x86_64-linux-gnu/libjpeg.so.62 (0x00007f773c994000)
            libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f773c76c000)
            libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f773c3d7000)
            libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f773c152000)
            libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f773bf4d000)
            libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f773bd2f000)
            libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f773ba29000)
            libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f773b812000)
            libssl.so.0.9.8 => /lib/libssl.so.0.9.8 (0x00007f773b5bf000)
            libcrypto.so.0.9.8 => /lib/libcrypto.so.0.9.8 (0x00007f773b230000)
            libffi.so.5 => /usr/lib/libffi.so.5 (0x00007f773b027000)
            libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f773adfd000)
            libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f773abfa000)
            librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f773a9f1000)
            libFLAC.so.8 => /usr/lib/libFLAC.so.8 (0x00007f773a7a7000)
            libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0x00007f773a2d8000)
            libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007f773a0ab000)
            libogg.so.0 => /usr/lib/libogg.so.0 (0x00007f7739ea4000)
            libpulse-simple.so.0 => /usr/lib/libpulse-simple.so.0 (0x00007f7739ca0000)
            libpulse.so.0 => /usr/lib/libpulse.so.0 (0x00007f7739a5e000)
            libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f773984c000)
            libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f7739649000)
            libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f7739442000)
            libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f773923c000)
            libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f7739031000)
            lib64/ld-linux-x86-64.so.2 (0x00007f773eefe000)
            libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f7738e14000)
            libpulsecommon-0.9.22.so => /usr/lib/libpulsecommon-0.9.22.so (0x00007f7738bc8000)
            libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f77389c5000)
            libICE.so.6 => /usr/lib/x86_64-linux-gnu/libICE.so.6 (0x00007f77387aa000)
            libSM.so.6 => /usr/lib/x86_64-linux-gnu/libSM.so.6 (0x00007f77385a2000)
            libXtst.so.6 => /usr/lib/libXtst.so.6 (0x00007f773839b000)
            libxcb-atom.so.1 => /usr/lib/libxcb-atom.so.1 (0x00007f7738196000)
            libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f7737f52000)
            libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f7737d4e000)
            libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f7737b48000)
            libwrap.so.0 => /lib/libwrap.so.0 (0x00007f773793d000)
            libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f7737737000)
            libnsl.so.1 => /lib/x86_64-linux-gnu/libnsl.so.1 (0x00007f773751d000)

sudo apt-get install libstdc++6

optionally you can force a global update of all the linked libraries with

sudo ldconfig

this last command can take some time and will not print anything on the bash, just wait.

EDIT

considering all the informations that you gave to us, you need to update your stdc++ library, this is the output of the same command that you used on your machine, but running on another machine updated to the latest stdc++ from this PPA

GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBC_2.2.5
GLIBC_2.3
GLIBC_2.14
GLIBC_2.4
GLIBC_2.3.4
GLIBC_2.3.2
GLIBCXX_DEBUG_MESSAGE_LENGTH

to get that executable running you have to stay up to date with your std library.

Instructions

about how to update your stdc++ libraries from this PPA

sudo add-apt-repository ppa:ubuntu-toolchain-r/test 
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

now your stdc++ should be up to date, this PPA also contains some others c++ libraries that are probably not already installed in your system, you can use a package manager to filter all the libstdc++ packages.


What I found was that adding /usr/lib/x86_64-linux-gnu to the LD_LIBRARY_PATH worked for me.

EDIT: LD_LIBRARY_PATH is an environment variable which can be set by the command export.